1989 San Francisco–Oakland earthquakeMap of the 1989 San Francisco–Oakland earthquake (also known as the Loma Prieta earthquake). The quake struck with a moment magnitude of 6.9 on October 17, just before the start of the third game of the World Series, which was being held at San Francisco's Candlestick Park. Sixty-three people died, and nearly 3,800 were injured. The baseball championship between the San Francisco Giants and the Oakland Athletics was suspended for 10 days, because both cities suffered significant damage.Encyclopædia Britannica, Inc.

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continental plate

…plate is exemplified by the North American Plate, which includes North America as well as the oceanic crust between it and a portion of the Mid-Atlantic Ridge. The latter is an enormous submarine mountain chain that extends down the axis of the Atlantic basin, passing midway between Africa and North…

Japan earthquake and tsunami of 2011

…actually a fragment of the North American Plate called the Okhotsk microplate.) A part of the subduction zone measuring approximately 190 miles (300 km) long by 95 miles (150 km) wide lurched as much as 164 feet (50 metres) to the east-southeast and thrust upward about 33 feet (10 metres).…

North America

…Plate (west) relative to the North American Plate (east) along transform faults. To the north, in British Columbia, this movement has been along the offshore Queen Charlotte Fault, while in California it has been along the San Andreas Fault. Subduction (crustal sinking) is not currently occurring in these two areas.…